Ventilating cupola



H. SILVER VENTILATiNG .CUPOLA 3 Sheets-Sheet 1 Filed M12. 17' 192] F'IGJINVENTOR ATTORNEY Sept. 30 1924. 1,509,848

H. SILVER VENTILATING CUPOLA Filed Au L 17 1921 Shets-Sheet. 3

ATTORNEY Patented Sept. 30, 1924.

UNITED STATES PATENT OFFICE.

HERMAN SILVER, FAIRIEIELD, IOW'A,

COMPANY, 035 FAIRFIELI), IOWA, A CORLPORATION 01F ASSIGNOZEQ. 'lO THELOUIJEN MACHINERY IOKVA.

VENTILATING CUZPOLA.

Application filed August 1'7, 1921. Serial No. 492,953.

To all whom it may concern:

Be it known that I, HERMAN citizen of the United Minneapolis, Minnesota,but now SILVER, a

formerly of rcsi ding States,

5 at Fairlield, in the county of Jefferson and State of Iowa, have invful Improvement which the following is My invention relates inVentilating Cupolas,

ented a new and useof a specification.

to cupolas designed to be placed on buildings, such as barns and thelike,

to promote ventilation therein, to add to the general appearance of theand building, and it consists of an improvement in the details of construction, whereby a more substantial construction will be ob tained, andthe cupol a, which should be mostly sheet metal, will be more securelyanchored to placed. Also, in other the building upon. which it isdetails of construction which will be hereafter explained and set forthin the claims.

In the accompanying drawings forming a part of this specificat ion, Fig.l is a view,

is an enlarged vertical of Fig. 1, looking in section on line 22 thedirection of the arrow, and the cut away portion of Fig. 1

being shown to make this figure complete.

Fig. 3 is an enlarged view of-the lower portion of Fig. 1, showinganchoring device.

tion showing the ditl'e cupola nested together.

the nested sections of the Figs. 6, 7, 8,

elevation showing cupola crated for shipment.

a modification of the Fig. l is a vertical secrent sections of the Fig.5 1s a slde 9, and 10 are detail views which will be hereafterexplained.

Referring to the drawings,

the base of the cupola,

the lower portions of the inner band; D an outer The base is preferablymade for the cupola;

A represents the upper and B cupola flue; C an band, and E a caprectangular with the lower edges outwardly flared, the upper portion ofthe flue section cylindrical, the cap conical, and the lower ortion oftheflue section tapered with its ower edges rectangular and adapted tofit over the upper edges upper edge cylindrical the lower edge of t fluesection. As menu of the base and its and fitting under no upper portionof the factured, the cupola consists of three separate sections towit:1st, the base A with the frame timbers ll and cornice G; 2nd, the fluesection con sisting of the upper and lower portions B and B, which arepreferably joined together as hereafter explained, and having the innerband C attached to the upper edge of the flue; and 3rd, the top portionhaving the outer band I) and cap E with their attachments.

The sections are all turned upside down in nesting as shown in l. First,the base A and then the part B of the flue portion is placed in the basewith the inner band C resting at certain points upon the frame timbersl5. Lastly the cap E with its spire H reaching downward into the linesection B, and the outer band D resting at certain points on the loweredge, (but now the upper edge) of the flue section B. The contactingedges of the flue portion B being rectangular while the contacting edgeof the outer band D is cylindrical, it will be readily understood thatthey will cross each other at points near the corners of the portion Band will come in contact at these points, the diagonal dimensions of thesection 13 being greater than the diameter of the band D.

When thus nested, the portions of the cupola will be in the form of asubstantially rectangular shaped package, and the most delicate partswill be protected and can be securely crated for shipment, as shown inFig. 5. As will be seen, when. the sections are nested, thecircumference of the outer band D will be substantially in verticalalignment with the central portions of the rectangular flanged edges l.and the cornice G, and will all be in direct contact with the central.crating boards which will. hold all the parts securely in place, and thenested sections can be entirely surrounded and held in place by arectangular shaped crating, as shown in Fig. 5.

In placing the cupola on the building the base A. is first set in place.Its lower edges will have to be cut to fit thepitch of the roof J, whichshould be cutaway inside of the cupola, leaving the rafters K intact.The flanges l are designed to make a better connection with the roof andare preferably connected thereto by nails or screws. a, as shown inFig. 1. In cutting away the edges ofthe base to lit the pitch of theroof,

. base, through which enough extra metal should be left to form thisflange all the way around. The base being fitted to the roof and securedthereto by the nails a, the next thing is to anchor it to the rooftimbers.

For this purpose, metallic plates L are secured to the inner sides ofthe frame timbers F, preferably on opposite sides of the threaded boltshaving threaded nuts on the-irlower ends M are passed down through atimber or timbers in the roof of the building. Where a ridge pole N isused, all that is necessary is to bore holes through the ridge poledirectly elow the plates L and pass the bolts M through these holes.lVith a ridge pole anchor bolts shorter than those shown in the drawingsmay be used.

lVhen there is no ridge pole, collar beams may be secured to the raftersand if near enough to a vertical position under the plates L, a hole maybe bored through each collar beam and the bolts passed through them. Ifthe collar beams are not in the proper positions, a header P may beplaced between them directly under the plates L and the bolts M may bepassed through properly located holes in the header. In Fig. 1, both theridge pole N and the header P are shown, although only one is generallynecessary. In any event it is advantageous to use the collar beams,because in a storm they will hold the rafters more securely together andthis will make a more reliable anchon Fig. 3 shows a modified In thiscase the sides of the base having the timbers F on'which the plates Lare placed, are set on opposite sides of the peak of the roof instead ofcrossing it at right angles as shown .in Figs. 1 and 2, andheaders Q areplaced between the rafters K immediately below the plates L and throughthese headers the anchor bolts Mare passed. This plan will requirelonger anchor bolts than the plans shown in Figs. 1 and 2. I showdifferent plans to accommodate different conditions, and users can taketheir choice.

The base A being placed in posit-ion and securely anchored, the nextthing is to attach the flue sect-ion consisting of the portions B and B.The lower edge of the'portion B is made to fit over the upper rectangular edge of the base immediately above the cornice G, and it may besecured thereto by a series of nails 6 driven through holes in its loweredges into the timbers F. This will hold the section securely in placeand will form a rain-tight joint.

The next and final step is to connect to the upper portion of the fluesection the remaining section consisting of the outer band D and the capE and their-attachments. The outer band D and the cap E are connectedtogether by a series of circumferentially form of anchor.

spaced apart braces R having downwardly inclined perforated ends (shownupwardly inclined or inverted in F ig. 4), and all that is necessary tomake the connection is to join these perforated ends to the upper edgeof the inner band C, or to the means connecting the inner band to theflue section B by a se ries of bolts (Z. lVhen this is done thedifferent parts of the cupola will be in operative position as shown inFig. 1.

It is advisable to use a screen in the space between the inner band andthe cap to keep birds, bats and the like out of the flue. The sideportions of this screen are indicated by S, the central portion beingbroken away to give a better view of the parts behind. it. Formerly thisscreen was connected to the upper edge of the flue section B and fromthere extended perpendicularly to inner portions of the cap, as shown bymy Patent #1,- 312,586, Aug. 12, 1919, Reissue #15223, Nov. 8, 1921, ofwhich the structure herein disclosed is designed to be an improvement.The former arrangement permitted birds and bats to roost on thesheltered upper edge of the inner band and to drop pieces of wool. mossand other debris in the space between the inner band and the flue, andeven to build nests therein, so that in time the space was liable tobecome entirely closed.

To remedy this defect I attach the up per and lower edges of the screento the adjacent edges of the cap and the inner band by the lower bolts 6which connect the lower edge of the cap to the upper ends of the bracesR. and by the upper bolts d which connect the lower ends of the braces Rto the upper edge of the inner band C. or to the outer upper edges ofthe devices connecting the inner bend to the flue.

All that is necessary to make the connection is to pass a mesh of thescreen over the point of the adjacent bolt. the burr being removed, andthen place a washer a over the point of the bolt large enough incircumference to hold the mesh, and then place the burr and turn it downto hold the washer, as shown in F 7, which is an enlarged section of theleft side of Fig. 1, showing a portion of the screen. This willeffectually protect the inner band and the only additional ex pense willbe the cost of the washers which will be much less than that required toat tach the screen to the flue in the former way.

As before stated it is preferable to make the base A rectangular. Whenthis is done the preferable way to join the vertically disposed edges ofthe four sides together. is to form on their adjacent edges outwardlyand backwardly disposed hook-shaped flanges, as shown in Fig. 8, Arepresenting transverse sections of adjoining portions of the two sidesof the base. Then use a corner binder T which is bent at substantiallyright angles longitudinally near its center, and has on its oppositeedges inwardly disposed hook shaped flanges U as shown separately inFig. 9. By placing the edges of the sides A together the binder T can beslipped endwise over their adjacent edges and its inwardly disposed hookshaped flanges U will slide below and catch under the outwardly disposedhook shaped flanges of the sides A. After being properly adjusted thehook shaped interlocking flanges will make solid reliable connectionsWithout any additional fastenings.

As already stated, the upper and lower portions B and B of the fluesection are preferably connected together in the factory and beforenesting or crating and shipping. In order to obtain the most substantialwater-proof joint between them I bend the lower edge of the upperportion inwardly and upwardly back on itself, and then bend the edgedownwardly beyond the backwarclly bent portion, leaving a narrow spacebetween the edge and the bent portion. The upper edge of the part B isthen inserted in this space and after the parts are brought closetogether they are held in place by a series of rivets 00, passed throughthem below the bend. This makes an exceedingly strong rain-tight jointbetween the portions B and B, as most plainly shown in Fig. 10.

It is preferable that a pair of anchor bolts passed through anchorplates secured to the frame timbers on opposite sides of the base beused, but if desired, a single bolt passed through an anchor platesecured to a frame timber in the base may be used and will answer thepurpose of anchoring the cupola to the roof of the building. The threadson the lower end of the anchor bolt or bolts should be long enough topermit the nut or nuts to be drawn up tightly against the lower edge ofthe timbers O, P or Q, if they should be set a little too close to theplate L.

There may also be other variations in the details of constructionwithout departing from the spirit of my invention.

What I claim is:

1. In ventilating cupolas having a base section, a rectangular shapedframe on the inside of said section, metallic plates secured to theinner sides of the timbers of said frame on opposite sides thereof, andthreaded bolts provided with threaded nuts passed vertically throughsaid plates, whereby when the cupola is placed on a building, the boltsmay be passed down through a timber or timbers in the building, and thecupola may thereby be adjustably anchored to the building by turning upthe nuts on the bolts.

2. A ventilating cupola having a flue section, a band secured to theouter upper edge of the flue so as to leave a space between the band andthe flue, a top section having a cap with its edges located a distanceabove the band, means to connect the cap to the band leaving a spacebetween them, and a screen inserted in the space between the cap and theband, one edge of the screen being secured to the lower edge of the capand its other edge secured to the upper edge of the band.

3. A ventilating cupola having a flue section, a band secured to theouter upper edge of the flue so as to leave a space between the band andthe flue, a top section having a cap with its edges located a distanceabove the band, a series of oircumferentially spaced apart braces toconnect the cap to the band and leave a space between them, and a screenhaving its upper edge secured to the upper edge of the cap and its loweredge secured to the upper edge of the band by means of the fasteningswhich secure the braces to the cap and the band.

Fairfield, Iowa, August 12, 1921.

HERMAN SILVER.

